public class Test3 {
    public static void main(String[] args) {
        IList mySingleList = new MySingleList();

        mySingleList.addFirst(12);
        mySingleList.addFirst(23);
        mySingleList.addFirst(34);
        mySingleList.addFirst(45);
        mySingleList.display();

        mySingleList.remove(23);
        mySingleList.display();
    }
}
